Nasal dosing device

Abstract

Disclosed is an end treatment, end structure, or end portion for a nasal dosing device. More particularly, the invention comprises a nasal insert tube for a nasal dosing device. The nasal insert tube is constructed having an outer surface with at least two levels thereby forming a hub. The nasal insert tube has a blunt dispensing end with at least one ejection port that is positioned substantially perpendicularly to the longitudinal axis of the nasal insert tube. Further, the distance from the at least one ejection port to the hub substantially matches a preferred distance from the outer opening of the nasal passage (i.e. the nares) to a location inside the nasal passage shown to augment the effectiveness of nasally administered medicine. For infants, the preferred distance is approximately 1 cm. The invention may be incorporated within in several alternate embodiments. The invention may be incorporated into a syringe tube, a gas propelled nasal device, or an adapter for either a syringe tube or a gas propelled nasal dosing device.

What is claimed is:  
     
         1 . A nasal dosing device for a human nasal passage having an alar rim comprising: 
 an inner surface;    an outer surface having at least two levels wherein the at least two levels form a hub;    a nasal insert tube having a longitudinal axis and extending from the hub to a blunt dispensing end;    at least one ejection port near the blunt dispensing end and substantially perpendicularly to the longitudinal axis of the nasal insert tube; and    a medicine dosing propellant adapted to the inner surface;    wherein the nasal insert tube is adapted to the human nasal passage and the hub is adapted to contact the alar rim.    
     
     
         2 . The nasal dosing device in  claim 1  wherein, 
 the at least one ejection port is positioned substantially near the blunt dispensing end.  
 
     
     
         3 . The nasal dosing device in  claim 1  wherein, 
 the at least one ejection port is between 0.75 and 1.25 centimeters from the hub.  
 
     
     
         4 . The nasal dosing device in  claim 1  wherein, 
 the at least one ejection port is substantially 1 centimeter from the hub.  
 
     
     
         5 . The nasal dosing device in  claim 1  wherein, 
 the medicine dosing propellant is selected from the group consisting of a mechanical displacement device and a liquid displacement device.  
 
     
     
         6 . The nasal dosing device in  claim 1  wherein, 
 the medicine dosing propellant is selected from the group consisting of plunger and a gas propellant nasal dosing device.  
 
     
     
         7 . An end portion for a nasal dosing device, the nasal dosing device having an inner surface and an outer surface that form a dosing cylinder, the end portion comprising: 
 a nasal insert tube having a longitudinal axis, having an inner surface end portion that is substantially parallel with a longitudinal axis of the nasal insert tube and that is coupled to the nasal dosing device inner surface, and an outer surface end portion having at least two levels thereby forming a hub, the nasal insert tube further having a blunt dispensing end and at least one ejection port that is positioned substantially perpendicularly to the longitudinal axis of the nasal insert tube.    
     
     
         8 . The end portion in  claim 8  wherein, 
 the nasal insert tube is an adapter for nasal dosing device selected from the group of nasal dosing devices consisting of: a syringe tube, a gas propelled nasal dosing device, a mechanical displacement device and a liquid displacement device.  
 
     
     
         9 . The end portion in  claim 8  wherein, 
 the at least one ejection port is between 0.75 and 1.25 centimeters from the hub.  
 
     
     
         10 . The end portion in  claim 8  wherein, 
 the at least one ejection port is substantially 1 centimeter from the hub.  
 
     
     
         11 . The end portion in  claim 8  wherein, 
 the nasal insert tube has annular shaped surfaces.  
 
     
     
         12 . A nasal dosing device for an infant nasal passage having an alar rim comprising: 
 a syringe tube having an inner surface and an outer surface comprising at least two levels wherein the at least two levels form a hub;    a nasal insert tube having a longitudinal axis and extending from the hub to a blunt dispensing end;    at least one ejection port near the blunt dispensing end and substantially perpendicularly to the longitudinal axis of the nasal insert tube; and    a plunger adapted to the inner surface; and    wherein the nasal insert tube is adapted to the infant nasal passage and the hub is adapted to contact the alar rim.    
     
     
         13 . The infant nasal dosing device in  claim 12  wherein, 
 the at least one ejection port is positioned substantially near the blunt dispensing end.  
 
     
     
         14 . The infant nasal dosing device in  claim 13  wherein, 
 the at least one ejection port is between 0.75 and 1.25 centimeters from the hub.  
 
     
     
         15 . The infant nasal dosing device in  claim 13  wherein, 
 the at least one ejection port is substantially 1 centimeter from the hub.  
 
     
     
         16 . The infant nasal dosing device in  claim 15  wherein, 
 the nasal insert tube has annular shaped surfaces.  
 
     
     
         17 . A nasal dosing device for an infant nasal passage having an alar rim comprising: 
 a gas propellant nasal dosing device having an inner surface and an outer surface comprising at least two levels wherein the at least two levels form a hub;    a nasal insert tube having a longitudinal axis and extending from the hub to a blunt dispensing end;    at least one ejection port near the blunt dispensing end and substantially perpendicularly to the longitudinal axis of the nasal insert tube; and    a gas propellant coupled to the inner surface; and    wherein the nasal insert tube is adapted to the infant nasal passage and the hub is adapted to contact the alar rim.    
     
     
         18 . The infant nasal dosing device in  claim 17  wherein, 
 the at least one ejection port is positioned substantially near the blunt dispensing end.  
 
     
     
         19 . The infant nasal dosing device in  claim 18  wherein, 
 the at least one ejection port is between 0.75 and 1.25 centimeters from the hub.  
 
     
     
         20 . The infant nasal dosing device in  claim 18  wherein, 
 the at least one ejection port is substantially 1 centimeter from the hub.  
 
     
     
         21 . The infant nasal dosing device in  claim 20  wherein, 
 the nasal insert tube has annular shaped surfaces.